422042791 has 2 divisors, whose sum is σ = 422042792. Its totient is φ = 422042790.

The previous prime is 422042783. The next prime is 422042813. The reversal of 422042791 is 197240224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422042791 - 2³ = 422042783 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422049791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211021395 + 211021396.

It is an arithmetic number, because the mean of its divisors is an integer number (211021396).

Almost surely, 2^422042791 is an apocalyptic number.

422042791 is a deficient number, since it is larger than the sum of its proper divisors (1).

422042791 is an equidigital number, since it uses as much as digits as its factorization.

422042791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 422042791 is about 20543.6800744170. The cubic root of 422042791 is about 750.0994185244.

The spelling of 422042791 in words is "four hundred twenty-two million, forty-two thousand, seven hundred ninety-one".